Narada Purana — Purva Bhaga, Shloka 54
Tithi-Nirṇaya for Vratas: Ekādaśī Rules, Saṅkrānti Punya-kāla, Eclipse Observances, and Prāyaścitta
उपोष्या द्वादशी शुद्धा सर्वैरेव न संशयः । केचिदाहुश्च पूर्वां तु तन्मतं न समंजसम् ॥ ५४ ॥
upoṣyā dvādaśī śuddhā sarvaireva na saṃśayaḥ | kecidāhuśca pūrvāṃ tu tanmataṃ na samaṃjasam || 54 ||
O Dvādaśī puro é, sem dúvida, o dia que deve ser tomado como dia de jejum; quanto a isso, não há incerteza entre todas as autoridades. Alguns, porém, dizem que deve ser o anterior; mas essa opinião não é consistente.
Sage Narada (teaching in a vrata/ritual context)
Vrata: Ekadashi (contextual; Dvādaśī fasting rule)
Primary Rasa: shanta
Secondary Rasa: vira
FAQs
It stresses correct observance of the Vaiṣṇava vow by insisting on śuddha Dvādaśī for fasting, implying that dharma is protected by precise adherence to proper tithi.
By prioritizing the properly determined Dvādaśī fast, it frames devotion as disciplined worship—bhakti expressed through accurate vrata practice rather than personal preference.
It reflects calendrical/tithi determination used in ritual decision-making (a practical application aligned with Jyotiṣa-style timekeeping for vrata observance).